METHOD OF PRODUCING A RETARDATION PLATE, RETARDATION PLATE, POLARIZING PLATE WITH A RETARDATION PLATE, LIQUID CRYSTAL PANEL, AND LIQUID CRYSTAL DISPLAY APPARATUS

摘要

Provided is a method capable of setting an appropriate stretching temperature even in the case where the difference in Tg of resins contained in respective layers is large and the case where the thickness of a laminate is large when a retardation plate having reverse dispersion characteristics is produced by stretching a laminate, and capable of obtaining a retardation plate which can express a sufficient retardation and in which retardation unevenness is reduced. The method of producing a retardation plate of the present invention includes the steps of applying a solution containing a resin B and a solvent to an optical base material containing a resin A to obtain a laminate including an optical base material layer and an application layer, and stretching the laminate, in which one of the resin A and the resin B has positive alignment birefringence, and another one of the resin A and the resin B has negative alignment birefringence, and the stretching is performed by setting an amount of a residual solvent in the laminate to be 2 to 10% by weight.